Summary:
Just trying to [getCurrentPosition](https://github.com/facebook/react-native/blob/master/Libraries/Geolocation/Geolocation.js#L45) , and found the `errorBlock` of location request in timeout handler would cause red error like this:
```
2015-05-10 17:50:39.607 [warn][tid:com.facebook.React.JavaScript] "Warning: Cannot find callback with CBID 5. Native module may have invoked both the success callback and the error callback."
2015-05-10 17:50:39.610 [error][tid:com.facebook.React.JavaScript] "Error: null is not an object (evaluating 'cb.apply')
stack:
_invokeCallback index.ios.bundle:7593
<unknown> index.ios.bundle:7656
<unknown> index.ios.bundle:7648
perform index.ios.bundle:6157
batchedUpdates index.ios.bundle:13786
batchedUpdates index.ios.bundle:4689
<unknown> index.ios.bundle:7647
applyWithGuard index.ios.bundle:882
guardReturn index.ios.bundle:7421
processBatch index.ios.bundle:7646
URL: http://192.168.100.182:8081/index
Closes https://github.com/facebook/react-native/pull/1226
Github Author: henter <henter@henter.me>
Test Plan: Imported from GitHub, without a `Test Plan:` line.
Summary:
As per #750, throw error when trying to use the geolocation module and this key is not set. cc @frantic
Closes https://github.com/facebook/react-native/pull/762
Github Author: Brent Vatne <brent.vatne@madriska.com>
Test Plan: Imported from GitHub, without a `Test Plan:` line.
henter
Tadeu Zagallo
Nick Lockwood
Brent Vatne
Alex Akers
Christopher Chedeau
Jiajie Zhu